illuminate

1 of 3

verb

il·​lu·​mi·​nate i-ˈlü-mə-ˌnāt How to pronounce illuminate (audio)
illuminated; illuminating

transitive verb

1
a(1)
: to supply or brighten with light
(2)
: to make luminous or shining
b
: to enlighten spiritually or intellectually
c
: to subject to radiation
d
archaic : to set alight
2
a
: to make clear : elucidate
b
: to bring to the fore : highlight
a crisis can illuminate how interdependent we all are
3
: to make illustrious or resplendent
4
: to decorate (something, such as a manuscript) with gold or silver or brilliant colors or with often elaborate designs or miniature pictures
illuminator noun

illuminate

2 of 3

adjective

il·​lu·​mi·​nate i-ˈlü-mə-nət How to pronounce illuminate (audio)
1
archaic : brightened with light
2
archaic : intellectually or spiritually enlightened

illuminate

3 of 3

noun

il·​lu·​mi·​nate i-ˈlü-mə-nət How to pronounce illuminate (audio)
archaic
: one having or claiming unusual enlightenment

Examples of illuminate in a Sentence

Verb the part of the moon illuminated by the sun A university study has illuminated the problem.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
Kingsolver’s speech was a testament to the power of writers as disrupters who can illuminate injustices and uncomfortable pressure points through literature. Clare Mulroy, USA TODAY, 21 Nov. 2024 The painting — depicting a house at night, illuminated by a lamp post, while under a bright, blue sky — is one of a series by the Belgian artist showing the interplay of shadow and light. Greg McKenna, Fortune, 20 Nov. 2024
Adjective
The pillars are illuminate, educate, engage, energize, and future. IEEE Spectrum, 9 Feb. 2024 The other four pillars are designated illuminate, educate, engage, and energize. IEEE Spectrum, 3 May 2023
Noun
Subscribe to Axios Communicators for more stories like this Colin Demarest Jul 10, 2024 - World Inside the next era of warfare: How tech is reshaping the battlefield Conflicts abroad and defense-contract competitions at home illuminate in real time the future of America's war machine. Colin Demarest, Axios, 11 July 2024 Watch:Doordash driver's dashcam video shows meteor illuminate night sky in Florida Artemis astronauts will need a vehicle on the moon. Gabe Hauari, USA TODAY, 12 Apr. 2024 See all Example Sentences for illuminate 

Word History

Etymology

Verb

Middle English, from Latin illuminatus, past participle of illuminare, from in- + luminare to light up, from lumin-, lumen light — more at luminary

First Known Use

Verb

15th century, in the meaning defined at sense 1b

Adjective

15th century, in the meaning defined at sense 1

Noun

1602, in the meaning defined above

Time Traveler
The first known use of illuminate was in the 15th century

Dictionary Entries Near illuminate

Cite this Entry

“Illuminate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/illuminate. Accessed 28 Nov. 2024.

Kids Definition

illuminate

verb
il·​lu·​mi·​nate
il-ˈü-mə-ˌnāt
illuminated; illuminating
1
: to supply with light : light up
illuminate a room
the part of the moon illuminated by the sun
2
: to make clear : explain
illuminated the point with good examples
3
: to decorate with designs or pictures in gold or colors
illuminate a manuscript
illuminative
-ˌnāt-iv
adjective
illuminator
-ˌnāt-ər
noun

More from Merriam-Webster on illuminate

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